Theoretical Description Of The Photopyroelectric Technique In The Slanted Detector Configuration For Thermal Diffusivity Measurements In Fluids

dc.creatorRojas-Trigos J.B.
dc.creatorMarin E.
dc.creatorMansanares A.M.
dc.creatorCedeno E.
dc.creatorJuarez-Gracia G.
dc.creatorCalderon A.
dc.date2014
dc.date2015-06-25T18:01:06Z
dc.date2015-11-26T15:02:51Z
dc.date2015-06-25T18:01:06Z
dc.date2015-11-26T15:02:51Z
dc.date.accessioned2018-03-28T22:13:44Z
dc.date.available2018-03-28T22:13:44Z
dc.identifier
dc.identifierThermochimica Acta. Elsevier, v. 582, n. , p. 101 - 105, 2014.
dc.identifier406031
dc.identifier10.1016/j.tca.2014.03.006
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84897446976&partnerID=40&md5=0e6c8893ac28698f32ae083debdcaeec
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/87496
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/87496
dc.identifier2-s2.0-84897446976
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1256474
dc.descriptionThis work presents an extended description about the theoretical aspects related to the generation of the photopyroelectric signal in a recently proposed wedge-like heat transmission detection configuration, which recreates the well-known Angstrom method (widely used for solid samples) for accurate thermal diffusivity measurement in gases and liquids. The presented model allows for the calculation of the temperature profile detected by the pyroelectric sensor as a function of the excitation beam position, and the study of the influence on it of several parameters, such as spot size, thermal properties of the absorber layer, and geometrical parameters of the measurement cell. Through computer simulations, it has been demonstrated that a narrow temperature distribution is created at the sensor surface, independently of the lateral diffusion of heat taking place at the sample's surface. © 2014 Elsevier B.V.
dc.description582
dc.description
dc.description101
dc.description105
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dc.languageen
dc.publisherElsevier
dc.relationThermochimica Acta
dc.rightsfechado
dc.sourceScopus
dc.titleTheoretical Description Of The Photopyroelectric Technique In The Slanted Detector Configuration For Thermal Diffusivity Measurements In Fluids
dc.typeArtículos de revistas


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